1.3 Scientific Thinking and Processes
KEY CONCEPT Scientific Method
Science is a way of thinking, questioning, and
gathering evidence.
1.3 Scientific Thinking and Processes
Like all science, biology is a process of inquiry or
problem solving.
• Scientific method- an organized way of problem solving
Steps: 1 state the problem
2 gather information
3 form a hypothesis
.
4 test the hypothesis – set up an experiment were only
one factor you are testing will change.
control group – set up that does not contain the
factor you are testing
experimental group – set up that does contain what
you are testing
Variables – factors you are testing
independent variables – factors you have decided
1.3 Scientific Thinking and Processes
Biologists use experiments to test hypotheses.
Collect Data:
1.3 Scientific Thinking and Processes
• Experiments allow scientists to determine what causes a
phenomenon.
1.3 Scientific Thinking and Processes
1.3 Scientific Thinking and Processes
A theory explains a wide range of observations.
• Theories explain a wide range of observations and
experimental results.
• A theory is supported by a wide range of scientific
evidence.
• Theories can change based on new evidence.